Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6416562 | Air filter medium, air filter pack and air filter unit comprising the same, and method for producing air filter medium | Yoshiyuki Shibuya, Hideyuki Kiyotani, Osamu Tanaka | 2002-07-09 |